.cover {
	height: 400px;
	position: relative;
}

.cover-wrapper {
	height: 100%;
	display: block;
	position: relative;
	background-color: #000;
}

.cover-item {
	height: 100%;
	display: inline-block;
	width: 100%;
	background-position: center bottom;
	background-size: auto 100%;
	background-repeat: no-repeat;
	background-color: #000;
	position: absolute;
}

.cover-item.front {
	z-index: 10;
}

.cover-item.back {
	z-index: 0;
}

.cover-btn-list {
	z-index: 10;
	position: absolute;
	width: 100%;
	height: 10px;
	text-align: center;
	bottom: 10px;
	font-size: 0;
}

.cover-btn-item {
	display: inline-block;
	background: #FFF;
	border-radius: 5px;
	width: 10px;
	height: 10px;
	margin: 0px 10px;
	opacity: 0.4!important;
	cursor: pointer;
}
.cover-btn-item.selected.true {
	cursor: default;
	opacity: 1!important;
}